package IO;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis= new FileInputStream("./images/KUAN.jpg");
        FileOutputStream fos = new FileOutputStream("./images/KUAN4.jpg");
        int d;
//        fos.write(d);
        long start = System.currentTimeMillis();
        while ((d=fis.read())!= -1){
            fos.write(d);
        }
        long end =System.currentTimeMillis();
        System.out.println("赋值完毕,耗时："+(end-start)+"ms");
        fis.close();
        fos.close();
    }
}
